Discount Water Filters and Air Filters at Discount Filter Store.com

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

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Water Filtration Systems & Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

Items 1 to 48 of 76 total

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  • P1-5 Tier1 Sediment Filter Cartridge

    P1-5 Tier1 Sediment Filter Cartridge

    $2.05
    MSRP: $8.34
    Save 75%
  • P10-5 Tier1 Polypropylene Sediment Filter

    P10-5 Tier1 Polypropylene Sediment Filter

    $2.55
    MSRP: $5.74
    Save 56%
  • SBC-25-1001 Hydronix Sediment Water Filter Cartridge
  • PURTREX-PX20-9-78

    PURTREX-PX20-9-78

    $4.29
    MSRP: $5.74
    Save 25%
  • SDC-25-1020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • PX05-20 Purtrex Replacement Water Filter

    PX05-20 Purtrex Replacement Water Filter

    $4.99
    MSRP: $9.19
    Save 46%
  • PX20-20 Purtrex Replacement Filter Cartridge

    PX20-20 Purtrex Replacement Water Filter

    $4.99
    MSRP: $8.04
    Save 38%
  • SDC-25-1010 Hydronix Sediment Water Filter Cartridge

    SDC-25-1010 Hydronix Sediment Water Filter Cartridge

    $4.99
    MSRP: $6.89
    Save 28%
  • SDC-25-0505 Hydronix Sediment Water Filter Cartridge

    SDC-25-0505 Hydronix Sediment Water Filter Cartridge

    $4.99
    MSRP: $6.89
    Save 28%
  • SDC-25-0510 Hydronix Sediment Water Filter Cartridge

    SDC-25-0510 Hydronix Sediment Water Filter Cartridge

    $4.99
    MSRP: $8.34
    Save 40%
  • HYDRONIX-CB-25-0505

    HYDRONIX-CB-25-0505

    $5.29
    MSRP: $8.04
    Save 34%
  • HDG-SED-ACS Hydronix Replacement Filter Cartridge

    HDG-SED-ACS Hydronix Replacement Filter Cartridge

    $5.99
    MSRP: $8.04
    Save 25%
  • SDC-25-1005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SWC-25-1030 Hydronix String Wound Sediment Water Filter

    SWC-25-1030 Hydronix String Wound Sediment Water Filter

    $5.99
    MSRP: $8.04
    Save 25%
  • SDC-25-0501 Hydronix Sediment Water Filter Cartridge

    SDC-25-0501 Hydronix Sediment Water Filter Cartridge

    $5.99
    MSRP: $9.34
    Save 36%
  • SWC-25-1005 Hydronix String Wound Sediment Water Filter

    SWC-25-1005 Hydronix String Wound Sediment Water Filter

    $5.99
    MSRP: $9.34
    Save 36%
  • P50-20 Tier1 Polypropylene Sediment Water Filter Cartridge
  • SPC-25-2010 Hydronix Pleated Sediment Water Filter

    SPC-25-2010 Hydronix Pleated Sediment Water Filter

    $6.05
    MSRP: $12.64
    Save 52%
  • HYDRONIX-ICF-6

    HYDRONIX-ICF-6

    $6.39
    MSRP: $9.19
    Save 30%
  • ICF-6Q Hydronix Inline Coconut Carbon Filter

    ICF-6Q Hydronix Inline Coconut Carbon Filter

    $6.99
    MSRP: $10.34
    Save 32%
  • SDC-25-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • PX10-20 Purtrex Replacement Filter Cartridge

    PX10-20 Purtrex Replacement Water Filter

    $6.99
    MSRP: $9.19
    Save 24%
  • SPC-25-1030 Hydronix Pleated Sediment Water Filter

    SPC-25-1030 Hydronix Pleated Sediment Water Filter

    $6.99
    MSRP: $13.21
    Save 47%
  • SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    $6.99
    MSRP: $8.04
    Save 13%
  • CB-25-1010 Hydronix Carbon Water Filter Replacement

    CB-25-1010 Hydronix Carbon Water Filter Replacement

    $6.99
    MSRP: $10.34
    Save 32%
  • SDC-25-1001 Hydronix Sediment Water Filter Cartridge
  • SPC-25-1050 Hydronix Pleated Sediment Water Filter
  • ICF-10 Hydronix Inline Coconut Carbon Filter

    ICF-10 Hydronix Inline Coconut Carbon Filter

    $7.05
    MSRP: $9.19
    Save 23%
  • HYDRONIX-ICF-10Q

    HYDRONIX-ICF-10Q

    $7.49
    MSRP: $10.34
    Save 28%
  • HYDRONIX-ISF-10

    HYDRONIX-ISF-10

    $7.49
    MSRP: $10.34
    Save 28%
  • SDC-25-2020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SPC-25-1010 Hydronix Pleated Sediment Water Filter
  • SWC-25-1001 Hydronix String Wound Sediment Water Filter
  • SWC-25-10100 Hydronix String Wound Sediment Water Filter
  • HYDRONIX-HDG-CB-AC10

    HYDRONIX-HDG-CB-AC10

    $8.59
    MSRP: $9.19
    Save 7%
  • SDC-25-2010 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-2050 Hydronix Sediment Water Filter Cartridge

    SDC-25-2050 Hydronix Sediment Water Filter Cartridge

    $8.99
    MSRP: $11.34
    Save 21%
  • SWC-25-2030 Hydronix String Wound Sediment Water Filter (30 micron)
  • HYDRONIX-ICF-10Q38

    HYDRONIX-ICF-10Q38

    $9.59
    MSRP: $11.49
    Save 17%
  • HYDRONIX-ISF-2512

    HYDRONIX-ISF-2512

    $9.59
    MSRP: $12.64
    Save 24%
  • CB-25-1001 Hydronix Carbon Water Filter

    CB-25-1001 Hydronix Carbon Water Filter

    $9.99
    MSRP: $13.79
    Save 28%
  • Hydronix SDC-25-3010 Polypropylene Sediment Filter

    Hydronix SDC-25-3010 Polypropylene Sediment Filter

    $8.99
    MSRP: $13.79
    Save 35%
  • Hydronix SDC-25-3025 Polypropylene Sediment Filter

    Hydronix SDC-25-3025 Polypropylene Sediment Filter

    $8.99
    MSRP: $10.91
    Save 18%
  • SDC-25-0501 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    $3.99 MSRP: $6.99
    Save 43%
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1

Items 1 to 48 of 76 total

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